You move up 1 unit and down 9 units. You end at (0, -5). Where did you start?

(0,3)

Step-by-step explanation:

The x value in this problem is not affected since it isn't moving to the left or right, so let's focus on y.

To find out where you began, do the opposite of the command (for example instead of going down go up)

-5+9=4  4-1=3

y=3

To check the answer start at 3 then go down 9 units (-6) then go up a unit (-5)

Hope this makes sense/helps!

y = 5x + 17

step-by-step explanation:

a perpendicular line will be the opposite reciprocal slope of the given equation.   the slope given is -1/5 so the opposite reciprocal is 5

find b:

7 = 5 (-2) + b

7 = -10 + b

17 = b

write equation

y = 5x + 17